Feodor Deahna
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Heinrich Wilhelm Feodor Deahna (1815-1844) was a German mathematician, best known for providing proof of what is now known as Frobenius theorem (differential topology) in 1840.
[edit] Selected works
- Deahna, F. "Über die Bedingungen der Integrabilitat ....", J. Refine Angew. Math. 20 (1840) 340-350.